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Distributed Computing Column 50 Distributing Trusted Third Parties, Innovation Prize, and SIROCCO Review

By Idit Keidar


Trusted third parties (TTPs) play many important roles in electronic commerce. It is often desirable to distribute the role of a TTP, in order to avoid placing too much power at the hands of a single entity. This column features an article by Alptekin Küpçü, surveying approaches to distributing TTPs. Alptekin first surveys standard techniques for doing so, using Byzantine Agreement and secure multi-party computations. He then proceeds to discuss a more efficient approach, where the trust is distributed among multiple autonomous parties that do not communicate among themselves. This column also pays back an outstanding debt from last year’s annual review column 1, with reports on the Prize for Innovation in Distributed Computing and SIROCCO 2012 where it was awarded. I open with the announcement of the prize, which was awarded to Roger Wattenhofer in 2012; congratulations Roger! The award statement is followed by our main article by Alptekin. The column concludes with a review by Heger Arfaoui of SIROCCO 2012. Many thanks to Alptekin and Heger for their contributions! Call for contributions: I welcome suggestions for material to include in this column, including news, reviews, open problems, tutorials and surveys, either exposing the community to new and interesting topics, or providing new insight on well-studied topics by organizing them in new ways.

Year: 2013
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